is bleach episode 90 filler?

Running through a long corridor in the Bount caves, Ichigo Kurosaki and 6th Division Lieutenant Renji Abarai come to a halt and stare in shock upon reaching a large cavern, which they begin cautiously proceeding through before discovering 11th Division 5th Seat Yumichika Ayasegawa lying battered on the ground several meters away. Though Renji is concerned for Yumichika, Ichigo warns him the Wächter of Ugaki's Doll, Gesell, are approaching.